<!DOCTYPE html>
<html lang="zh">
  <head>
    <meta charset="utf-8" />
    <title>Hello!</title>
  </head>

  <body>
    <div id="root"></div>
    <script src="https://unpkg.com/react@^16/umd/react.production.min.js"></script>
    <script src="https://unpkg.com/react-dom@^16/umd/react-dom.production.min.js"></script>
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</html>
